net/octeontx2: support link status

Adding a new callback for reading the link status. PF can read it's
link status and can forward the same to VF once it comes up.

Signed-off-by: Harman Kalra <hkalra@marvell.com>
Acked-by: Jerin Jacob <jerinj@marvell.com>

diff --git a/drivers/net/octeontx2/otx2_ethdev.c b/drivers/net/octeontx2/otx2_ethdev.c
index 0a420c1..40af99a 100644 (file)
--- a/drivers/net/octeontx2/otx2_ethdev.c
+++ b/drivers/net/octeontx2/otx2_ethdev.c
@@ -42,7 +42,8 @@ nix_get_tx_offload_capa(struct otx2_eth_dev *dev)
 
 static const struct otx2_dev_ops otx2_dev_ops = {
        .link_status_update = otx2_eth_dev_link_status_update,
-       .ptp_info_update = otx2_eth_dev_ptp_info_update
+       .ptp_info_update = otx2_eth_dev_ptp_info_update,
+       .link_status_get = otx2_eth_dev_link_status_get,
 };
 
 static int
@@ -2635,6 +2636,11 @@ otx2_eth_dev_uninit(struct rte_eth_dev *eth_dev, bool mbox_close)
 
        nix_cgx_stop_link_event(dev);
 
+       /* Unregister the dev ops, this is required to stop VFs from
+        * receiving link status updates on exit path.
+        */
+       dev->ops = NULL;
+
        /* Free up SQs */
        for (i = 0; i < eth_dev->data->nb_tx_queues; i++) {
                otx2_nix_tx_queue_release(eth_dev->data->tx_queues[i]);

diff --git a/drivers/net/octeontx2/otx2_ethdev.h b/drivers/net/octeontx2/otx2_ethdev.h
index 381e6b6..e95d933 100644 (file)
--- a/drivers/net/octeontx2/otx2_ethdev.h
+++ b/drivers/net/octeontx2/otx2_ethdev.h
@@ -464,6 +464,8 @@ void otx2_nix_toggle_flag_link_cfg(struct otx2_eth_dev *dev, bool set);
 int otx2_nix_link_update(struct rte_eth_dev *eth_dev, int wait_to_complete);
 void otx2_eth_dev_link_status_update(struct otx2_dev *dev,
                                     struct cgx_link_user_info *link);
+void otx2_eth_dev_link_status_get(struct otx2_dev *dev,
+                                 struct cgx_link_user_info *link);
 int otx2_nix_dev_set_link_up(struct rte_eth_dev *eth_dev);
 int otx2_nix_dev_set_link_down(struct rte_eth_dev *eth_dev);
 int otx2_apply_link_speed(struct rte_eth_dev *eth_dev);

diff --git a/drivers/net/octeontx2/otx2_link.c b/drivers/net/octeontx2/otx2_link.c
index a79b997..5378e5c 100644 (file)
--- a/drivers/net/octeontx2/otx2_link.c
+++ b/drivers/net/octeontx2/otx2_link.c
@@ -47,6 +47,29 @@ nix_link_status_print(struct rte_eth_dev *eth_dev, struct rte_eth_link *link)
                otx2_info("Port %d: Link Down", (int)(eth_dev->data->port_id));
 }
 
+void
+otx2_eth_dev_link_status_get(struct otx2_dev *dev,
+                            struct cgx_link_user_info *link)
+{
+       struct otx2_eth_dev *otx2_dev = (struct otx2_eth_dev *)dev;
+       struct rte_eth_link eth_link;
+       struct rte_eth_dev *eth_dev;
+
+       if (!link || !dev)
+               return;
+
+       eth_dev = otx2_dev->eth_dev;
+       if (!eth_dev)
+               return;
+
+       rte_eth_linkstatus_get(eth_dev, &eth_link);
+
+       link->link_up = eth_link.link_status;
+       link->speed = eth_link.link_speed;
+       link->an = eth_link.link_autoneg;
+       link->full_duplex = eth_link.link_duplex;
+}
+
 void
 otx2_eth_dev_link_status_update(struct otx2_dev *dev,
                                struct cgx_link_user_info *link)